Underwater-to-air universal aircraft layout

Abstract

The invention discloses an underwater-to-air universal aircraft layout. The underwater-to-air universal aircraft layout comprises an aircraft body; the aircraft body comprises an aircraft body front section and an aircraft body back section; folding fixed wings are symmetrically arranged on the two side surfaces of the front end of the aircraft body; vertical lifting devices are arranged on the folding fixed wings; a rotor used for parallel propulsion is arranged right ahead the aircraft body front section; a horizontal tail and a vertical tail are arranged at the back end of the aircraft body; and a watertight compartment used for floating and diving in the water is arranged on the aircraft body. According to the underwater-to-air universal aircraft layout, the watertight compartment arranged at the lower part of a cabin is beneficial for realizing the function of being able to repeatedly diving and floating; due to larger dihedral angle of the wings, a propeller of the vertical lifting device can be separated from the water surface before being started and can also provide the rolling stability; both high and low speed flights in the air can be taken into account, the water-entryimpact load and underwater navigation resistance are reduced, the velocity of water-exit can also be increased, and conversion of multiple motion states can be finished.

Description

technical field [0001] The invention relates to the field of trans-medium aircraft, in particular to a general-purpose submarine aircraft layout. Background technique [0002] Submersible general-purpose aircraft (flying submersible) refers to a new type of equipment that can meet the needs of air, underwater and surface flight or navigation at the same time. It has the characteristics of fast maneuverability of aircraft and high concealment of submarines. Military applications are of great significance. The layout design of the submersible general-purpose aircraft is very important, and it is required to have good underwater performance and air performance at the same time. This requirement is a new problem that needs to be solved in fluid mechanics. The density difference between water and air is 800 times, the viscosity coefficient is about 100 times different, the Reynolds number is an order of magnitude different, and the buoyancy is 800 times different. The difference...

AI Technical Summary

Problems solved by technology

For example, the cormorant submarine-launched UAV developed by the United States is currently the most reported similar technical solution. This aircraft adopts catapult launch, vertical take-off, and foldable wings. It can only exit the water once and is recovered by parachute. , also does not have the function of underwater or surface navigation

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